ord.expand: Expand Ordinal Data for GEE Modeling
Description
Expands ordinal score data into appropriate form, K-1 new binary variables for ordinal score with K categories, for model fitting using GEE.Usage
ord.expand(scores, data, subjects, categories)
Arguments
scores
a character string identifying the response variable.
data
a dataframe in which to interpret the variables occurring in the formula.
subjects
a character string specifying the name of the subject variable.
categories
a numeric variable indicating the number of ordinal score categories.
Details
Mainly for internal use with repolr.